143930739 has 4 divisors (see below), whose sum is σ = 191907656. Its totient is φ = 95953824.

The previous prime is 143930723. The next prime is 143930749. The reversal of 143930739 is 937039341.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 143930739 - 2⁴ = 143930723 is a prime.

It is a super-2 number, since 2×143930739² = 41432115258172242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143930697 and 143930706.

It is not an unprimeable number, because it can be changed into a prime (143930749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23988454 + ... + 23988459.

It is an arithmetic number, because the mean of its divisors is an integer number (47976914).

Almost surely, 2^143930739 is an apocalyptic number.

143930739 is a deficient number, since it is larger than the sum of its proper divisors (47976917).

143930739 is an equidigital number, since it uses as much as digits as its factorization.

143930739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47976916.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 143930739 is about 11997.1137779051. The cubic root of 143930739 is about 524.0642305644.

The spelling of 143930739 in words is "one hundred forty-three million, nine hundred thirty thousand, seven hundred thirty-nine".